2022 wholesale price Truck Hub Bolt - Good price HD 15T Rear Wheel Bolt – JINQIANG

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2022 wholesale price Truck Hub Bolt - Good price HD 15T Rear Wheel Bolt – JINQIANG Detail:

Product description

Hub bolts are high-strength bolts that connect vehicles to the wheels. The connection location is the hub unit bearing of the wheel! Generally, class 10.9 is used for mini-medium vehicles, class 12.9 is used for large-sized vehicles! The structure of the hub bolt is generally a knurled key file and a threaded file! And a hat head! Most of the T-shaped head wheel bolts are above 8.8 grade, which bears the large torsion connection between the car wheel and the axle! Most of the double-headed wheel bolts are above grade 4.8, which bear the lighter torsion connection between the outer wheel hub shell and the tire.

Manufacturing process of high strength bolts

1. Spheroidizing annealing of high-strength bolts

When the hexagon socket head bolts are produced by the cold heading process, the original structure of the steel will directly affect the forming ability during cold heading processing. Therefore, the steel must have good plasticity. When the chemical composition of the steel is constant, the metallographic structure is the key factor determining the plasticity. It is generally believed that the coarse flaky pearlite is not conducive to cold heading forming, while the fine spherical pearlite can significantly improve the plastic deformation ability of the steel.
For medium carbon steel and medium carbon alloy steel with a large amount of high-strength fasteners, spheroidizing annealing is performed before cold heading, so as to obtain uniform and fine spheroidized pearlite to better meet the actual production needs.

Our Hub bolt quality standard

10.9 hub bolt

hardness	36-38HRC
tensile strength	≥ 1140MPa
Ultimate Tensile Load	≥ 346000N
Chemical Composition	C:0.37-0.44 Si:0.17-0.37 Mn:0.50-0.80 Cr:0.80-1.10

12.9 hub bolt

hardness	39-42HRC
tensile strength	≥ 1320MPa
Ultimate Tensile Load	≥406000N
Chemical Composition	C:0.32-0.40 Si:0.17-0.37 Mn:0.40-0.70 Cr:0.15-0.25

FAQ

1.How to deliver goods?
A.Deliver by container or by LCL

2.Can you accept L/C payment terms?
A.Can cooperate by TT,.L/C and D/P payment terms

3.Why choose us?
A.We are manufacturer, we have price advantage
B.We can gurantee the quality

4.What is your main market?
Europe, America, Southeast Aisa, Middle East, Africa ETC.

5. What is the grade of your products?
A.Hardness is 36-39,tensile strength is 1040Mpa
B.Grade is 10.9

6. What is your yearly output?
18000000 PCS for production each year.

7.How many staff do your factory have?
200-300affs we have

8.When did your factory found?
Factory was founded in 1998,with more than 20 years experience

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We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!